fork from https://github.com/mozilla/pdf.js.git

test/components/simple-viewer.js

@@ -0,0 +1,113 @@
+/* Copyright 2026 Mozilla Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { getDocument, GlobalWorkerOptions } from "pdfjs-lib";
+import { EventBus } from "../../web/event_utils.js";
+import { GenericL10n } from "../../web/genericl10n.js";
+import { PDFFindController } from "../../web/pdf_find_controller.js";
+import { PDFLinkService } from "../../web/pdf_link_service.js";
+import { PDFScriptingManager } from "../../web/pdf_scripting_manager.component.js";
+import { PDFViewer } from "../../web/pdf_viewer.js";
+
+// The workerSrc property shall be specified.
+//
+GlobalWorkerOptions.workerSrc =
+  typeof PDFJSDev === "undefined"
+    ? "../../src/pdf.worker.js"
+    : "../../build/pdf.worker.mjs";
+
+// Some PDFs need external cmaps.
+//
+const CMAP_URL =
+  typeof PDFJSDev === "undefined"
+    ? "../../external/bcmaps/"
+    : "../../web/cmaps/";
+
+const DEFAULT_URL = "../../web/compressed.tracemonkey-pldi-09.pdf";
+
+const ENABLE_XFA = true;
+const SEARCH_FOR = ""; // try "Mozilla";
+
+const SANDBOX_BUNDLE_SRC = new URL(
+  typeof PDFJSDev === "undefined"
+    ? "../../build/generic/build/pdf.sandbox.mjs"
+    : "../../build/pdf.sandbox.mjs",
+  window.location
+);
+
+const WASM_URL =
+  typeof PDFJSDev === "undefined"
+    ? "../../build/generic/web/wasm/"
+    : "../../build/wasm/";
+
+const fileUrl = new URLSearchParams(location.search).get("file") ?? DEFAULT_URL;
+
+const container = document.getElementById("viewerContainer");
+
+const eventBus = new EventBus();
+
+// (Optionally) enable hyperlinks within PDF files.
+const pdfLinkService = new PDFLinkService({
+  eventBus,
+});
+
+// (Optionally) enable find controller.
+const pdfFindController = new PDFFindController({
+  eventBus,
+  linkService: pdfLinkService,
+});
+
+// (Optionally) enable scripting support.
+const pdfScriptingManager = new PDFScriptingManager({
+  eventBus,
+  sandboxBundleSrc: SANDBOX_BUNDLE_SRC,
+  wasmUrl: WASM_URL,
+});
+
+const pdfViewer = new PDFViewer({
+  container,
+  eventBus,
+  l10n: new GenericL10n(navigator.language),
+  linkService: pdfLinkService,
+  findController: pdfFindController,
+  scriptingManager: pdfScriptingManager,
+});
+pdfLinkService.setViewer(pdfViewer);
+pdfScriptingManager.setViewer(pdfViewer);
+window.pdfScriptingManager = pdfScriptingManager;
+
+eventBus.on("pagesinit", function () {
+  // We can use pdfViewer now, e.g. let's change default scale.
+  pdfViewer.currentScaleValue = "page-width";
+
+  // We can try searching for things.
+  if (SEARCH_FOR) {
+    eventBus.dispatch("find", { type: "", query: SEARCH_FOR });
+  }
+});
+
+// Loading document.
+const loadingTask = getDocument({
+  url: fileUrl,
+  cMapUrl: CMAP_URL,
+  enableXfa: ENABLE_XFA,
+});
+
+const pdfDocument = await loadingTask.promise;
+// Document loaded, specifying document for the viewer and
+// the (optional) linkService.
+pdfViewer.setDocument(pdfDocument);
+
+pdfLinkService.setDocument(pdfDocument, null);